Why Cutting Edge Uses A Conversion Varnish For Finished Cabinet Doors
Why does Cutting Edge use a conversion varnish on cabinet doors? Learn why it’s one of the most common finishes used for cabinet doors.
At A Glance
Why Do So Many Cabinet Door Shops Choose Conversion Varnish?
A conversion varnish is a sprayed finish that helps cabinet doors resist spills and moisture. Cutting Edge uses two types of conversion varnish: Matador on painted doors and Amerivar on clear-coated doors for protection and a smooth appearance. If you prefer visible grain texture or a very pale finish, another coating may suit you better.
You’re reading this article because you heard a supplier mention conversion varnish while talking about finished cabinet doors. What does it mean, and why would a shop use it? Will it protect your doors from spills? Could you apply it yourself? The name alone tells you little about how your doors will look or how long they’ll last.
Cutting Edge Doors & Woodworking has produced cabinet doors in Saskatchewan for over 20 years. Although most leave our shop unfinished, we also paint, stain and lacquer doors. In our 2025-2026 fiscal year, we produced over 11,000 cabinet doors with various finishes. That hands-on work helps us explain why we use conversion varnish and when another finish might suit you better.
To help you choose a finish, we will explain:
What Is A Conversion Varnish Finish For Cabinet Doors?
Conversion varnish starts as a liquid coating. Before spraying it, a finisher adds a catalyst that helps the coating cure (harden) into a protective film. The curing process is the reason it’s called a conversion varnish. Unlike traditional finishes (the kind you’ll find in a hardware store), which dry as the solvent evaporates, conversion varnishes undergo a chemical reaction. Adding the catalyst begins the chemical reaction, in which the individual molecules of the base bond to one another, creating a more durable finish.
Once hardened, the finish resists moisture, but it is not waterproof. Wipe up standing water and follow your supplier’s care instructions. This is especially important when the doors are new because a conversion varnish finish can take nearly a month to cure (reach its final hardness).
Conversion varnishes can be solvent based or water based. Solvent based or water based describes the liquid that carries the coating, while conversion varnish describes how the coating hardens. A shop might also call its clear conversion varnish a “lacquer” or a “solvent-based lacquer.” If you compare finishes between suppliers, ask for the product name rather than relying on these broad terms. Then, search that product name and check the description to learn whether it is a conversion varnish.
Why Cutting Edge Uses A Conversion Varnish For Finished Cabinet Doors
At Cutting Edge, we use Matador materials for painted doors and Amerivar over a sealer for clear coated and stained doors. Both are conversion varnishes. We choose each for its performance during and after finishing and for the look it gives the door.
1. It Helps Finished Doors Handle Kitchen Moisture
Because cabinet doors face damp hands, splashes and spills, moisture resistance matters. Matador paint offers moisture and chemical resistance as benefits for kitchen cabinets. Amerivar products are intended for woodwork and offer scratch and chemical resistance.
However, that protection has limits. Water left around an edge or joint can still damage a door. How long a finished door lasts depends on your supplier’s process, the door material and how you care for it.
2. High Solids Help Build A Full Finish
Solids are what remains after a liquid coating dries. The more solids a coating contains, the thicker each coat of finish is.
Matador and Amerivar products have high solids, which help us reach the coverage we want with one topcoat. However, the finish still includes primer or sealer coats underneath. For example, we spray a sealer coat before applying Amerivar to wood. Painted MDF needs both sealer and primer before Matador. High solids do not replace those steps.
Matador Paint Gives Painted Doors A Fuller Look
For painted doors, our supplier describes Matador as a thick, modified enamel urethane coating. (Yes, it is also a conversion varnish.) Applied over properly prepared primer, it helps create even colour and a smooth surface. Those qualities matter on detailed profiles and MDF edges, where patchy coverage stands out.
The coating cannot fix poor sanding or make a joint disappear. Because cut MDF edges absorb finish differently from flat surfaces, we seal and prime MDF before spraying. A sample on your chosen material and profile will show you the result to expect.
Amerivar Lacquer Creates A Smooth, Filled-In Look
A high-build sealer and topcoat can also help fill in the open pores of wood. However, a high build does not fill every pore. Grainy woods like Oak may still show texture, even though its surface feels smoother. You will also still see the wood’s colour and grain pattern through the clear coat.
3. These Products Have Good Resistance To Yellowing
Sunlight can change the colour of a cabinet door over time. This process is called yellowing, and occurs in part because of certain chemicals found in lacquers. One of those chemicals is nitrocellulose. Neither Amerivar nor Matador products contain nitrocellulose, playing into our decision to use those materials. While they may yellow slightly over time, it isn’t as drastic or as noticeable compared to lacquers that contain nitrocellulose.
Can You Get A Conversion Varnish Finish From Other Companies?
Yes. Conversion varnish is common among professional finishers. However, they aren’t the only option. Other shops are beginning to use polyurethane paint or acrylic urethane clear finishes. Even two shops offering “conversion varnish” may use different sealers or prepare the doors differently.
Since labour and the number of coats also affect your price, ask for a total quote. You should also request samples, care instructions and warranty terms.
Could you apply the conversion varnish finish? Our supplier was emphatic that homeowners should leave conversion varnishes to professional booths. It requires spray equipment, ventilation, protective gear and experience to achieve a quality result. A brushable finish is more practical for many home projects, though the finish will be less durable and more textured.
Find Out What Finished Cabinet Doors Cost
Conversion varnish can give cabinet doors a smooth look and resistance to everyday spills. However, it cannot prevent water damage or stop wood from changing colour. To decide whether it suits your kitchen, compare samples and ask each shop about preparation, care and other finishes.
Price is the next part of that decision. Cutting Edge makes painted, stained and clear coated cabinet doors in Saskatchewan. Learn how much our finished doors cost, then compare our pricing and finishes with other shops to find the right fit for your project.
